Moly-D Molybdenum Disilicide MoSi2 Heating Elements

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The Moly-D element is a dense cermet material consisting of MoSi2 and an oxide, glassy phase component.

Moly-D elements have the ability to withstand oxidation at high temperatures by forming a protective layer of quartz on its surface. If this glassy phase should be exposed to contaminants, a lower melting phase forms. This material literally drips off the element exposing more molybdenum disilicide on which a new protective oxide layer forms.

Moly-D elements become somewhat ductile at approximately 1200ºC (2190ºF).